package com.itheima.aop;

import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;

@Slf4j
@Component
@Aspect     // 表示当前类是一个Aop类
public class TimeAspect {

    @Around("execution(* com.itheima.service.*.*(..))")     //切入点表达式
    public Object recordTime(ProceedingJoinPoint joinPoint) throws Throwable {
        //1、记录开始时间
        long begin = System.currentTimeMillis();

        //2、调用原始方法
        Object result = joinPoint.proceed();

        //3、记录结束时间，计算方法执行耗时
        Long end = System.currentTimeMillis();
        log.info(joinPoint.getSignature()+"方法执行耗时：{}ms", end - begin);

        return result;
    }
}
